DC Motors In D.C. machines the residual magnetism is of the order of 50 to 75 percent 20 to 25 percent 10 to 15 percent 2 to 3 percent 50 to 75 percent 20 to 25 percent 10 to 15 percent 2 to 3 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Steel rolling mills Centrifugal pumps Elevators Colliery winders Steel rolling mills Centrifugal pumps Elevators Colliery winders ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. Cu losses Iron and friction losses Field losses None of the listed here Cu losses Iron and friction losses Field losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Lenz's law Coloumb's law Fleming's left hand rule Faraday's law Lenz's law Coloumb's law Fleming's left hand rule Faraday's law ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Voltage control method Armature resistance control method Field divertor method Field control method Voltage control method Armature resistance control method Field divertor method Field control method ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Armature Field Commutator Brushes Armature Field Commutator Brushes ANSWER DOWNLOAD EXAMIANS APP
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